I made some spring-loaded PVC tubes for supporting black fabric for my porch display. Think pole-lamps and you'll get the idea. They have a short piece of PVC that telescopes out of the long pipe. I put rubber caps, like on the ends of crutches, to give them some grip on the floor and ceiling. Makes setting up the cloth walls a snap and beats heck outta using duct tape. Cheap and easy to make. Let me know if you'd like a pic of the construction.
Maybe we're more than what we think we are...
...or maybe not.